Mulch on the Metro: Why do leaves on the track cause delays and headaches for passengers?

It’s a problem that rail networks and Metro bosses have to deal with each autumn and a headache that angers millions of commuters as it causes delays.
The dreaded leaves on the track dilemma is back and while national rail companies running trains through the North East and Metro chiefs tear their hair out, passengers are left on platforms as the simple leaf causes mayhem during autumn journeys.
Mulch on the Metro and other tracks reduces adhesion between the steel train wheels and the rails.
It’s a nightmare - but we are here to explain what low rail adhesion (LRA) really means and what is... read more

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